Invention Grant
US09343991B2 Current balance control for non-interleaved parallel bridge circuits in power converter
有权
电力转换器中非交错并联桥电路的电流平衡控制
- Patent Title: Current balance control for non-interleaved parallel bridge circuits in power converter
- Patent Title (中): 电力转换器中非交错并联桥电路的电流平衡控制
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Application No.: US13744975Application Date: 2013-01-18
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Publication No.: US09343991B2Publication Date: 2016-05-17
- Inventor: Robert Gregory Wagoner , Anthony Michael Klodowski
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Dority & Manning, P.A.
- Main IPC: H02M5/458
- IPC: H02M5/458 ; H02M5/42 ; H02M5/293 ; H02M7/493 ; H02P9/00 ; H02P101/15

Abstract:
Systems and methods for reducing current imbalance between parallel bridge circuits used in a power converter of a power generation system, such as a wind driven doubly fed induction generator (DFIG) system, are provided. The power converter can include a plurality of bridge circuits coupled in parallel to increase the output power capability of the system. Each of the bridge circuits can include a pair of switching elements, such as insulated gate bipolar transistors (IGBTs), coupled in series with one another. The switching elements of the parallel bridge circuits can be controlled, for instance, using control commands (e.g. pulse width modulation commands) according to a substantially non-interleaved switching pattern. The timing of the control commands according to the substantially non-interleaved switching pattern can be adjusted to reduce current imbalance between the parallel bridge circuits.
Public/Granted literature
- US20140204630A1 CURRENT BALANCE CONTROL FOR NON-INTERLEAVED PARALLEL BRIDGE CIRCUITS IN POWER CONVERTER Public/Granted day:2014-07-24
Information query
IPC分类: